> Though this demo doesn't do so, multiple backends could be compiled into a single binary and platform-specific code paths could then be selected at runtime.

That’s kind of the goal, I’d assume: writing generic code and having it run on anything.

> writing generic code and having it run on anything.

That has been already done successfully by Java applets in 1995.

Wait, Java applets were dead by 2005, which leads me to assume that the goal is different.